Home / 20,286.18-30,384.77-16,736.25

Finding the Fourth Proportional to 20,286.18, 30,384.77 and 16,736.25

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Solution

The fourth proportional to 20,286.18, 30,384.77 and 16,736.25 is: 25,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.18 : 30,384.77 = 16,736.25 : x
  2. Step 2: Convert to fraction form
    20,286.18/30,384.77 = 16,736.25/x
  3. Step 3: Cross multiply
    20,286.18x = 30,384.77 × 16,736.25
  4. Step 4: Simplify right side
    20,286.18x = 508,527,137.17
  5. Step 5: Solve for x
    x = 508,527,137.17/20,286.18
  6. Step 6: Final answer
    x = 25,067.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.